Home / 3,318.85-4,981.35-1,676.55

Finding the Fourth Proportional to 3,318.85, 4,981.35 and 1,676.55

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Solution

The fourth proportional to 3,318.85, 4,981.35 and 1,676.55 is: 2,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.85 : 4,981.35 = 1,676.55 : x
  2. Step 2: Convert to fraction form
    3,318.85/4,981.35 = 1,676.55/x
  3. Step 3: Cross multiply
    3,318.85x = 4,981.35 × 1,676.55
  4. Step 4: Simplify right side
    3,318.85x = 8,351,482.34
  5. Step 5: Solve for x
    x = 8,351,482.34/3,318.85
  6. Step 6: Final answer
    x = 2,516.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.